I bought a NOS (not intentionally....it was literally new old stock) 65 Jaguar from Peach Guitars, and the guitar was perfect (and I still have it) but there were some nitro related stress marks like the one in this topic (probably smaller though).
That was different. The whole batch of guitars were heavily discounted to clear out the Fender EU warehouse apparently. I was very lucky to get some a wonderful instrument for that price.
However, on a brand new instrument that has just been manufactured? Nope. I wouldn't be happy. Also, it just seems the bass isn't quite up to expectations, and the customer service is absolutely horrific. I wouldn't buy one now.
I would just offer you a full refund if I was him, and have the bass refinished or sold as b stock. Simple. No stress.